Thorne Research, L-Tryptophan, 60 Veggie Caps2 Reviews
The length of time for the expiration date or "best used before" date depends on the type of product, as well as the brand.
Perishable items (such as flax oils or certain probiotics) generally have shorter expiration dates. Although our warehouse is fully air-conditioned, these more fragile items are put in cold storage (freezer or refrigeration unit) for maximum freshness.
Our receiving department does its best to verify and then enter the correct expiration dates for all incoming products. However, discrepancies do occur from time to time. This being said, the exceptionally high turnover at iHerb ensures that our inventory is among the freshest in the industry.
The Shipping Weight includes the product, protective packaging material and the actual shipping box. In addition, the Shipping Weight may be adjusted for the Dimensional Weight (e.g. length, width & height) of a package. It is important to note that certain types of products (e.g. glass containers, liquids, fragile, refrigerated or ice packed) will often require protective packaging material. As such, these products will reflect a higher Shipping Weight compared to the unprotected product.
0.22 lbs (0.1 kg)
- Product Code: THR-50101
- UPC Code: 693749501015
- Package Quantity: 60 Veggie Caps
- Dimensions: 2.3 x 2.3 x 4.3 in, 0.15 lbs (0.07 kg)
This product is already in your Wish List.
View Wish List
This product is now in your Wish List.
- Dietary Supplement
Precursor to serotonin, melatonin, and niacin
- amino acid essential for brain serotonin and melatonin production
- promotes relaxation, sleep, and good mood
- contains no preservatives, magnesium stearate, or other lubricants and diluents
- made without flowing agents that can inhibit its bioavailability
L-tryptophan is an amino acid essential to human metabolism because it is the metabolic precursor of serotonin (a neurotransmitter), melatonin (a neurohormone), and niacin (vitamin B3). Other neurotransmitters and central nervous system chemicals, including dopamine, norepinephrine, and beta-endorphin, have been shown to increase following oral administration of tryptophan. Because of its effects on serotonin and melatonin production in the brain, L-tryptophan supplementation can benefit mood and can also promote relaxation, a benefit for individuals attempting to get to sleep.
Supplementing with L-tryptophan allows the body to use it where it is needed most - for protein synthesis, niacin formation, or as a serotonin/melatonin precursor. For optimal L-tryptophan absorption and transport across the blood-brain barrier, it is recommended to take L-tryptophan with a dietary carbohydrate.
Take 1-2 capsules two times daily or as recommended by your health-care practitioner.
Hypromellose (derived from cellulose) capsule, leucine, microcrystalline cellulose, silicon dioxide.
Excipient Free: This product does not contain wheat, gluten, corn, yeast, soy, egg, dairy products, or artificial colors, sweeteners, or flavors. This product also does not contain lactose, palmitic acid, or magnesium, calcium, or vegetable stearates.
Tamper Evident: Use only if bottle is sealed.
If pregnant, consult your health-care practitioner before using this product.
Store tightly sealed in a cool, dry place.
Allergy Warnings: This product is contraindicated in an individual with a history of hypersensitivity to any of its ingredients.
Interactions/Contraindications: There are no known adverse interactions or contraindications at publication date.
|Serving Size: Two Capsules|
|Serving Per Container: 30|
|Two Capsules Contain:||Amount Per Serving||% DV|
|*Daily Value (DV) not established.|
iHerb Customer Reviews
I have started using this on the advice of my Chiropractor. I am very confident of the quality of Thorne products
This product, L-Tryptophan, definitely takes the edge off if you feel your blood pressure going up. I notice when I'm driving that I don't get upset with the other drivers if I have taken Tryptophan. When I don't take it, I tend to get upset when they make stupid mistakes.